First report of a UK car with this new battery pack on here today - delivered at the end of Dec.
The fact that Tesla hasn't changed the spec on the website means there will probably be both types for the short term - if you get the new one it's a bonus, if you don't then you get the spec you ordered.
Since I am far less active here I might have overlooked it, but I've had a glimpse into the EPA DB lately and found some charge data that confirms most of our SMT measurements. Panasonic 3L with real 82kWh: CATL 6L with real 62kWh:
teslamotorsclub.com